my amana washer wont engage the spin cycle. it washs,rinses,spins ok in other cycle, but when it gets to the spin cycle on the timer it wont start the spin but the timer continues to travel until the end of the cycle. i can leave the timer in the on position and manually move the timer from spin to spin on the different wash settings and eventually i can get it to spin. my guess would be the timer is bad. any help here??